THE ROLE OF UNIFIED PAYMENTS INTERFACE (UPI) IN TRANSFORMING INDIA’S DIGITAL PAYMENT ECOSYSTEM: A SECTOR-WISE ANALYSIS

Abstract

The Unified Payments Interface (UPI) has become a central component of India’s retail digital-payment infrastructure. This study examines the expansion and sectoral application of UPI, with particular attention to banking, government bill payments, retail commerce and transport-related payment environments. The study adopts a descriptive and analytical design based on secondary data reported in the underlying project report and supplemented by official NPCI and Government of India publications. The period covered by the principal annual series is 2021–22 to 2025–26. The report-based UPI product series records an increase in transaction volume from 45,967.53 million in 2021–22 to 241,616.88 million in 2025–26, while transaction value rises from ₹8,417,572.48 crore to ₹31,423,249.71 crore. Retail merchant-category data also indicate substantial growth in reported UPI transactions, particularly in groceries, restaurants, fast-food outlets, pharmacies and bakeries. Government bill-payment data show an expansion in both volume and value. The analysis suggests that UPI’s contribution is most clearly evidenced in payment convenience, interoperability, transaction digitisation and the participation of small merchants. However, the available data do not establish a direct causal effect on GDP or prove that every transaction in associated systems such as FASTag and metro networks is a UPI transaction. Cyber fraud, digital-literacy gaps, connectivity constraints, transaction failures and grievance-redressal delays remain important concerns. The paper concludes that UPI can support inclusive digital economic activity when accompanied by reliable infrastructure, consumer protection and effective dispute resolution.